BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 163 58.8%
2 Germany 48 17.3%
3 United States 32 11.6%
4 Netherlands 10 3.6%
5 Russia 7 2.5%
6 Singapore 3 1.1%
7 India 3 1.1%
8 Turkey 2 0.7%
9 Poland 2 0.7%
10 Hong Kong 2 0.7%
11 Belgium 2 0.7%
12 Bulgaria 2 0.7%
13 Finland 1 0.4%